Hubbard Brook

Summer kick-off at Hubbard Brook

We’ve had a busy couple of weeks at Hubbard Brook.  Last week was the beginning of the REU program.  We have two excellent students, Nathaniel Rasnake and Delaney Peterson, from Virginia Tech who are both working on our lateral weathering project.  This week was the LTER site mid-term review of the Hubbard Brook Ecosystem Study.  …

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Here is a list of our AGU 2018 presentations

Transit Time Distributions on a Boreal Catchment Using a 14 Year Data Time Series, H13J-1867 Monday, 10 December 2018, 13:40 – 18:00 Decoupled Water and Nitrate Transport Downslope and across the Terrestrial-Aquatic Interface, B24A-02  Tuesday, 11 December 2018, 16:15 – 16:30 Quantifying Mineral Weathering Across Lateral Gradients Using a Whole-Regolith Approach, H21K-1797 Tuesday, 11 December 2018, 08:00 …

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New Hubbard Brook hydro and hydropedology papers from the group

Our graduate students and collaborators on Hubbard Brook projects have several new papers now available online. Bourgault, R. R., Ross, D. S., Bailey, S. W., McGuire, K. J., Gannon, J. P., 2017. Redistribution of soil metals and organic carbon via lateral flowpaths at the catchment scale in a glaciated upland setting, Geoderma, 307:238–252, doi: 10.1016/j.geoderma.2017.05.039. …

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Hubbard Brook walking tour from 50th anniversary

This Youtube video was recently posted from a field tour several of us gave during the 50th anniversary of the Hubbard Brook Ecosystem Study.  There is good background on forested watershed studies, gaging streams, hydropedology, and local historical ecology at Hubbard Brook.  Mark Green (USFS & Plymouth State), JP Gannon (Western Carolina University), Nick Grant …

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New paper linking water age and solute dynamics at Hubbard Brook

Paolo Benettin’s paper was just accepted, which was the result of his study abroad visit here in the lab during the fall 2013 and spring 2014.  The manuscript explores water age-dependent transport in estimating weathering-derived solute export.   The model predicts water travel time dynamics from water stable isotope data and represents geochemical dissolution at the catchment-scale as a simple first-order kinetic …

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New paper showing alternative source of stream dissolved organic carbon in a headwater catchment

JP Gannon just had another paper accepted in Water Resources Research this week.  The study suggests that dissolved organic carbon (DOC) in headwater streams may be generated from shallow to bedrock regions in the catchment, which mostly occur near the catchment divides and channel heads.  The study also suggests that hydropedological patterns are critical to understanding DOC …

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Summer 2015 at Hubbard Brook

It’s that time of year again…the Hubbard Brook Cooperator’s Meeting!  This year we celebrated the 60th anniversary of the Hubbard Brook Experimental Forest.  We had a record attendance at the meeting, and as usual, it was full of great talks and good conversations with colleagues.  Four REU students are working on hydropedology and stream network project …

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New paper on lidar DEM evaluation by Cody Gillin

Gillin, C.P., Bailey, S.W., McGuire, K.J., Prisley, S.P., 2015. Evaluation of lidar-derived DEMs through terrain analysis and field comparison, Photogrammetric Engineering & Remote Sensing, 81(5): 387-396, doi: 10.14358/PERS.81.5.387. Abstract Topographic analysis of watershed-scale soil and hydrological processes using digital elevation models (DEMs) is commonplace, but most studies have used DEMs of 10 m resolution or coarser. …

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Paper published on mapping of hydropedologic spatial patterns

A paper from Cody Gillin’s master’s thesis was accepted last week.  The manuscript titled “Mapping of hydropedologic spatial patterns in a steep headwater catchment” will be published in a special issue on hydropedology in the Soil Science Society of America Journal.  This paper appears in the special issue with another paper on the same project, …

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New paper about how forests lose nitrogen through shallow groundwater flowpaths

In a paper published in the Proceedings of the National Academy of Sciences, McGuire working with a team from the Hubbard Brook Ecosystem Study found clear evidence of nitrogen loss through denitrification in isolated shallow groundwater patches in a small watershed. The findings were somewhat of a surprise because denitrification has been so difficult to …

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New paper by Gannon on organizing groundwater regimes and response thresholds by soils

JP Gannon had a paper accepted this week in Water Resources Research titled “Organizing groundwater regimes and response thresholds by soils: A framework for understanding runoff generation in a headwater catchment.” Here’s the abstract: A network of shallow groundwater wells in a headwater catchment at the Hubbard Brook Experimental Forest in New Hampshire, USA was …

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News release – Ecology team improves understanding of valley-wide stream chemistry

BLACKSBURG, Va., April 22, 2014 – A geostatistical approach for studying environmental conditions in stream networks and landscapes has been successfully applied at a valley-wide scale to assess headwater stream chemistry at high resolution, revealing unexpected patterns in natural chemical components. “Headwater streams make up the majority of stream and river length in watersheds, affecting regional …

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Network chemistry patterns in headwater streams – new paper published in PNAS

In a new article published this week in Proceedings of the National Academy of Sciences, we show how high-resolution mapping and analysis of water chemistry throughout a headwater stream network reveals unexpected patterns in how flowing water interacts with the surrounding landscape at multiple spatial scales.  Here’s the abstract and a link to the paper: …

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